Planet Technology IDL-2402 - Manual (Page 95)

4.3.2.3 Translation VLAN
This option allows you to configure the translation VLAN table, which defines some
special VLAN working rules such as VLAN stack, VLAN cross-connect, etc. Before you
configure the Translation VLAN table for a line bridge port, you shall configure the Static
VLAN table for this line bridge port and the GIGA bridge port in advance. Also, you shall
disable VLAN stacking feature of this line bridge port in the ADSL bridge interface setup
page (refer to section 4.3.1), otherwise the VLAN translation rule here will not take effect.
From the Bridge menu, click on VLAN Configuration and then Translation VLAN. The
following page is displayed. Click on the radio button to select translation Mode first.
Actually the IDL-2402 provides five translation modes: four for 1:1 VLAN, one for N: 1
VLAN (refer to DSL Forum TR-101).
1:1 VLAN (including 1:1 User Mode and C_VLAN Stacking Replaced Mode):
If the ADSL user bridge port only has 1:1 VLAN, then MAC learning function of this bridge
port can be disabled.
1. Reserved
In this mode, the system does not make any change on C-Tag. That is the
uplink port’s S-Tag is actually the C-Tag. The system provides a tunnel for the
user port and uplink port. And one VLAN ID can only make one tunnel.
2. Replaced
In this mode, the system will change the user port’s C-Tag to the Uplink port’s
S-Tag. And the mapping is one to one, that is, one user port’s C-Tag (one VID)
can only translate to one uplink port’s S-Tag (one VID), and vice versa. For
example, for ADSL Port1-PVC1, if ADSL VID 5 translates to GIGA1 VID 1, then
you cannot make ADSL VID 5 translate to another GIGA VID. You also cannot
make another ADSL VID translate to GIGA VID1.
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